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2 Sheets-Sheet Al. H. GRUSON.

GUN CARRIAGE.

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H. GRUSON.

GUN CARRIAGE.

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lif Recoil Checks,

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(No Model.)

ATTEST QL/L M %/WJ% M /yf.

lUNrrEn STATES,

'PATENT @Erica HERMANN Gunsox, or BUCEAU, NEAR MAGDEBURG, rRUssiA,GERMANY.

GUN-CARRIAGE.

SPECIFICATION forming part of Letters Patent No. 295,245, dated March18, 1884.

Application filed September li?, 1893. (No model.) Patented in BelgiumMarch 274. 1883, No. 60,870; in France April 3, 1983, No. 154,638, andinllaly June 10, 1883, XVII, 15,425.

To all whom, it may concern,.-

Beit known that I, HERMANN GRUsoN, of Buchan, near Magdeburg, Prussia,Germany, hareinvented certain new and useful Improvements in andrelating to GiurCarriages and Apparatus to be used in connectiontherewilhfof which the following is aspecitication.

This invention relates to improvements in gun-carriages with minimumembrasures.

In other similar gun-carriages hitherto constructed the lower frame ofthe gun-carriage is stationary and the lifting-cylinder is connectedwith the upper part, so that the barrel only is lifted; but according tothe present invention I make only the lifting-cylinder stationary, andthe gunfcarriage as apwhole is vertically raised or lowered in order Ytopoint the gun or place the same in position for tiring.

2o In order that my invention may be fully understood, I will proceed todescribe it with reference to the accompanying drawings, in which-Figure I is a side elevation, partly in sec- `tion, of my improvedgun-carrage. Fig. II is a vertical transverse section, and Fig. III ahorizontal section, ofthe same. Fig. IV is a plan of the guide-rodremoved, showing the recoil-cylinders attached thereto. Figs. V

3o and VI are detail views, showing modifications in the arrangement ofthe recoil-cylinders and their accessories.

To this end the hydraulic cylinder A is L rmly connected with twobearers, C C', by

means of the cross-piece B. The piston A', by means of a cross-head, D,carries the llower gun-carriage, E, the sides of which extend'in theform of two shoulders, E E", which are arranged to move up and down infour guides,

4o F F, when the gun-carriage is raised by the piston A. Upon the frameE rests the upper portion, G, of the gun-carriage, which portion issupported by friction-rollers, and the walls of which serve as bearingsfor the trunnions.

4 5 The barrel may be caused to turn on the front pivotal point invarious manners-for example, by means of a guide-rail, as shown in Fig.I, or by means of an embrasure-ring, as shown in Fig. VI.

5o The guides do not form part of the present carriage.

invention, and therefore to explain Fig. I it need only be mentionedthat the barrel is mounted ou a block, J, sliding upon a guiderail, H,which lies parallel to the axis of the barrel, and this rail turns uponthe pivotO, so that the axis of the barrel must coincide in everyposition with the center C. The arrangement of the guiding devices issimpler in Fig. VI, the guiding being effected by mea-ns ofanembrasure-ring which turns upon two pivots. If a horizontal movement berequired, then pulleys are placed under the bearers C Gand a pivot isplaced beneath O. A

Another' improvement consists in the modified arrangement of thebrake-cylinders K K for the Purpose ,0i Y(lindaishii-1e the Elfes@ 0ftheVY recoil. (Hydraulic brake-cylinders, as is well known, are filledwith a fluid, which is forced through the perforated pistons when thepiece of ordnance recoils.) The brake-cylinders, contrary to the mode ofconstruction hitherto employed, are, according to the present invention,not attached to the gun-carriage frame, but to the barrel itself, whilethe piston-rods are firmly secured to some part outside of thegun-carriage. tion represented in Figs. .I to IV the brakecylinders .areattached to the sliding block J, Fig. IV, connected with the barrel,while the piston-rods are attached to the guide-rail H by means of thecross-piece L. In Fig. Vthe cylinders K K form the sliding block, whilethe pistonrods form thetwo guide-rails, which are pivoted at O, and thenumber of parts isV thus reduced by two. Fig. VI shows, by way In theconstrucf of barrel-guide, an embrasure-ring. The Y brakecylinders areeach provided with an eye tting onto the trunnions, and the piston-rodsare similarly connected to extensions of the pivots of theembrasurelring. The reverse Yofv this arrangement may be adopted, ifdesiredthat is to say, the piston-rods canbe connected to the barrel,and the cylinders can be secured firmly to a point outside of the gun-In Figs. V and VI the barrel-guides and brake-cylinders only are shown,while the other portions shown in Fig. are omitted. By connecting thebrake-cylinders with the barrel, the embrasure is completely protectedfrom the strain caused by the recoil of the gun,

IOO

1o the axis of said trunnions, on which it turns,

as set forth.

2. The combination, with a vertically-moving frame and a slidinggun-carriage mounted thereon and supporting the trunnions, of the barrelpivoted through intermediate connections to a part of the frame distantfrom 'the vertical plane of the axis of said trunnions, which is'stationary as regards vertical and in! the purpose set forth. 3.- flhecombination, with avertically-mov- 4"ing gun-carriage a'ording bearingsin which Ythe trunnions Work, and the barrel having dependent horizontalmovement, as and for' through intermediate connections a fixed pivotalpoint distant from the vertical plane of 25 the axis of said trunnions,of a hydraulic press for operating said carriage, as set fort-h. 4. Thecombination, with the verticallyr` moving frame E and carriage G, of thebarrel I pivotally connected to a part of the frame through the mediumof the buffer K and rod H, sliding in a suitable groove in a block fixedto the under side of the barrel, as and for the purpose set forth. l

5. The combination, with the verticallymoving frame E, carriage G, andthe barrel, having through the medium of suitable intermediateconnections a fixed pivotal point dis'- tant from the vertical plane ofthe axis of the trunnions, of a hydraulic press, A, the purpose setforth.V

HERMANN i GRUsoN.

Witnesses:

J ULrUs voN SoH'rz, i EMIL KIRLLUMKEY.

as and for 4o

